Separate out Leaderboard into BeatmapLeaderboard

osu.Game/Online/Leaderboards/DrawableRank.cs

@@ -0,0 +1,57 @@
+// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Framework.Allocation;
+using osu.Framework.Extensions;
+using osu.Framework.Graphics;
+using osu.Framework.Graphics.Containers;
+using osu.Framework.Graphics.Sprites;
+using osu.Framework.Graphics.Textures;
+using osu.Game.Scoring;
+
+namespace osu.Game.Online.Leaderboards
+{
+    public class DrawableRank : Container
+    {
+        private readonly Sprite rankSprite;
+        private TextureStore textures;
+
+        public ScoreRank Rank { get; private set; }
+
+        public DrawableRank(ScoreRank rank)
+        {
+            Rank = rank;
+
+            Children = new Drawable[]
+            {
+                rankSprite = new Sprite
+                {
+                    RelativeSizeAxes = Axes.Both,
+                    Anchor = Anchor.Centre,
+                    Origin = Anchor.Centre,
+                    FillMode = FillMode.Fit
+                },
+            };
+        }
+
+        [BackgroundDependencyLoader]
+        private void load(TextureStore textures)
+        {
+            this.textures = textures;
+            updateTexture();
+        }
+
+        private void updateTexture()
+        {
+            rankSprite.Texture = textures.Get($@"Grades/{Rank.GetDescription()}");
+        }
+
+        public void UpdateRank(ScoreRank newRank)
+        {
+            Rank = newRank;
+
+            if (LoadState >= LoadState.Ready)
+                updateTexture();
+        }
+    }
+}